<table>
  <tr>
    <th id="badvalue" scope="whatever"></th>
  </tr>
</table>

<table>
  <tr>
    <td id="tdrow" scope="row"></td>
  </tr>
</table>

<table>
  <tr>
    <th id="throw" scope="row"></th>
  </tr>
</table>

<table>
  <tr>
    <td id="tdcol" scope="col"></td>
  </tr>
</table>

<table>
  <tr>
    <th id="thcol" scope="colgroup"></th>
  </tr>
</table>
